Definition: You are given a question on high school geography. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: The distance north and south of the equator is the
(A)global grid system. (B)Prime Meridian (C)latitude. (D)longitude.

C